CAPE CANAVERAL, Florida (Reuters) - Astronomers slated to meet this week to discuss observing plans for Comet ISON may not have much to talk about. The so-called "Comet of the Century" may already have fizzled out.
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Astronomers have come a long way in understanding how stars form today, but the question of how the universe's first stars formed is an enduring mystery. While the topic remains complex and confusing, researchers say they hope to make strides in the near future with new and improved computer models
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MONTREAL, Quebec — Flashing a picture of the star HR 8799 and its four alien planets on a big screen, astronomer Andrew Cumming smiled. "This is the most amazing picture in exoplanet science!" he exclaimed.
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Physicists at Cern, a nuclear research facility in Switzerland, are expected to announce that they have finally found the Higgs Boson, a sub-atomic particle. Derrick Pitts, chief astronomer at the Franklin Institute, discusses.

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In this composite image released May 23, 2013, visible-light observations by NASA's Hubble Space Telescope are combined with infrared data from the ground-based Large Binocular Telescope in Arizona to assemble a dramatic view of the well-known Ring Nebula.Called a planetary nebula, the Ring Nebula

Astronomers use what they call a "cosmic distance ladder" to estimate the expansion rate of the universe, as illustrated here. NASA's Spitzer Space Telescope observed 10 Cepheid variable stars in our own Milky Way galaxy and 80 in a satellite galaxy known as the Large Magellanic Cloud to get a firme

This image released August 2, 2012 shows what the NASA/ESA Hubble Space Telescope has captured in a crowd of stars that looks like a stadium darkened before a show, lit only by the flashbulbs of the audience’s cameras. Yet the many stars of this object, known as Messier 107, are ancient stars that h